To remove the "This application was created by a Google Apps Script user" banner from your web app, you generally need to change how the script is hosted or verified, as it is a built-in security feature for unverified scripts. Primary Solutions

This is the preferred method if you want a professional presentation without requiring users to install anything. 2. Verify Your Project with Google Cloud (GCP)

Google Workspace Accounts

: For internal apps, the banner is often not shown to users who are part of the same Google Workspace domain as the script owner. Why the Banner Exists

• Describe your app.
• Explain why you need each scope.
• Provide a video or screenshot walkthrough.